The cardiovascular system consists of the heart and the blood vessels, which have the function carry blood rich in oxygen and low in carbon dioxide gas to the entire body, in addition to the blood rich in carbon dioxide and poor in oxygen gas to the lungs. Thus, it promotes a gas exchange that will become again the blood rich in oxygen.
The heart is a hollow muscle that works like a bomb. The anatomy of the cardiovascular system, the right side of the heart receives blood rich in carbon dioxide and leads to the lungs where it receives oxygen. From there, it goes to the left atrium, and this, to the left ventricle, where it exits the aorta, causing the oxygen-rich blood and nutrients throughout the body .
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To ensure that blood flows in one direction, the heart has four valves : pulmonary, tricuspid, aortic and mitral. Have to be able to circulate throughout the body, the blood needs to flow within blood vessels: arteries, arterioles, capillaries, veins and smaller arteries.
The entire functioning of the cardiovascular system is based on the beat heart . With their basis, the atria and ventricles of the HEART relaxam and contraem, um forming cycle to ensure circulation to the entire body. Assim, the cardiovascular system involves both the blood system quanto lymphatic system.
Diseases of the cardiovascular system
Diseases of the cardiovascular system, particularly the coronary arteries and the stroke (Stroke) are the leading causes of death worldwide. A stroke, or stroke, occurs when there is blockage or rupture of blood vessels in the brain, which may cause loss of movement, problems in speech and vision. Have cardiomyopathy is a disease that primarily affects the heart muscle. http://theislandhop.com/story.php?title=contact-usthe-pregnancy-miracle-review
Heart failure occurs when the heart can not pump enough blood to meet the body's needs, also be characterized as a blood disease of the cardiovascular system as well as cardiac arrhythmia - irregular heartbeat that may cause palpitations and shortness of breath.
Other diseases of the cardiovascular system are angina (a severe chest pain that usually appears to make an effort and relieved by rest), myocardial infarction (which is characterized by severe chest pain caused by lack of blood in the heart that can lead death), valvulopathy (a group of diseases that affects any of the four valves that control blood flow in the heart), and the presence of any congenital heart disease , may be a cardiac malformation, such as a heart murmur.
Prevention
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Despite medical advances , the best treatment remains prevention. Some attitudes and care can prevent or delay the onset of cardiovascular disease.
The physical exercise is extremely important for preventing cardiovascular disease because it promotes physical and mental well being, reduces blood pressure and helps control and prevent diabetes and keep weight, preventing obesity. Adopting a Healthy, Internatio supply l is also extremely effective in preventing the cardiovascular system.
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